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Query for array elements inside JSON type
I'm trying to test out the json type in PostgreSQL 9.3.
I have a json column called data in a table called reports . The JSON looks something like this:
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Run an Application in GDB Until an Exception Occurs
...t a breakpoint in an exception handler instead, it may not be easy to find out where the exception was raised.
To stop just before an exception handler is called, you need some knowledge of the implementation. In the case of GNU C++, exceptions are raised by calling a library function named __raise...
What is the difference between a var and val definition in Scala?
...l is that better, why have var at all? Well, some languages did take that route, but there are situations in which mutability improves performance, a lot.
For example, take an immutable Queue. When you either enqueue or dequeue things in it, you get a new Queue object. How then, would you go about ...
Grant execute permission for a user on all stored procedures in database?
... a role add this role to users, and then you can grant execute to all the routines in one shot to this role.
CREATE ROLE <abc>
GRANT EXECUTE TO <abc>
EDIT
This works in SQL Server 2005, I'm not sure about backward compatibility of this feature, I'm sure anything later than 2005 should...
Limiting the number of records from mysqldump?
... , so in this case you get SELECT * from table WHERE 1 limit 1000000. Without the 1, you would have an invalid query. Specifying 1 for a where clause (since 1 is always true) simply selects all records.
– Adam Bellaire
Jul 15 '11 at 1:28
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Is there a date format to display the day of the week in java?
...te = new Date();
DateFormat df = new SimpleDateFormat("yyyy-MM-E");
System.out.println(df.format(date));
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What does “@@ -1 +1 @@” mean in Git's diff output?
...diff hunk identifier. This is documented by GNU Diffutils.
The unified output format starts with a two-line header, which looks like this:
--- from-file from-file-modification-time
+++ to-file to-file-modification-time
The time stamp looks like 2002-02-21 23:30:39.942229878 -0800 to indi...
Factors in R: more than an annoyance?
...els(x$Species)
# [1] "setosa"
This is how to keep levels you've selected out from getting in ggplot legends.
Internally, factors are integers with an attribute level character vector (see attributes(iris$Species) and class(attributes(iris$Species)$levels)), which is clean. If you had to change a ...
How to debug Visual Studio extensions
I'm just writing a VSIX extension for Visual Studio 2010 and can't figure out how to debug it.
4 Answers
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How do I make a reference to a figure in markdown using pandoc?
...e are a couple of filters available to make figure reference work with all output formats pandoc-fignos and pandoc-crossref
– joelostblom
Apr 26 '15 at 15:39
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